The model utility content
For this reason, technical problem to be solved in the utility model be to provide that a kind of user cost is little, Maintenance and Repair convenient, simple in structure and gas compressor that compression ratio is high.
For solving the problems of the technologies described above, the technological scheme of employing of the present utility model is as follows: a kind of split type gas compressor comprises:
By the cylinder assembly that a plurality of cylinders constitute, cylinder comprises cylinder sleeve separately and is arranged at the interior piston of cylinder sleeve;
The cylinder head that cooperates with cylinder assembly;
And the driving mechanism that drives described piston motion;
Form gas single channel in the cylinder head, be provided with a plurality of one-way valves of gas flow direction in the described cylinder sleeve of control in the gas single channel 0 with gas access and gas outlet.
The volume of a plurality of cylinders reduces gradually along gas flow direction.
A plurality of cylinders are arranged in parallel.
One-way valve comprises:
One in the gas access with have between inlet one-way valve from the cylinder of maximum volume to the unidirectional conducting of maximum volume cylinder;
Between the cylinder that adjoins between the cylinder of the unidirectional conducting of cylinder of less volume one-way valve;
One at the outlet one-way valve that has between minimum volume cylinder and the gas outlet to the unidirectional conducting of gas outlet.
One-way valve is fixed in the air-flow single channel by the valve fixed block.
The valve fixed block forms the central cavity that connects along air-flow single channel direction, and is communicated with the cavity that is connected of central cavity and cylinder.
Valve fixed block one side forms along the groove of described air-flow single channel direction, reaches the cavity that is connected of communication groove and cylinder sleeve.
Cylinder is four.
Driving mechanism comprises a bent axle and is connected guide rod between the crankshaft and piston.
Bent axle comprises a main shaft and a plurality of eccentric that is installed on the described main shaft.
Technique scheme of the present utility model has following advantage compared to existing technology:
1, the branch body structure of cylinder sleeve and cylinder when a cylinder block is damaged, only needs to change a new cylinder sleeve and just can guarantee that compressor runs well, and can not cause all cylinder blocks all to be scrapped, and therefore can save user cost greatly;
2, the branch body structure of cylinder sleeve and cylinder, cylinder sleeve can remove and install easily, makes that the repair and maintenance of cylinder block is more convenient;
3, the in-line arrangement of a plurality of cylinder sleeves is arranged, and each parts annexation is simple, is convenient to the manufacturing and the maintenance of compressor integral body;
4, the multistage compressor of a plurality of cylinder sleeves formations makes gas compression than higher, obtains the pressurized gas of higher concentration, better meets needs.
Embodiment
Below in conjunction with drawings and Examples the utility model is done concrete description, from description and accompanying drawing, can better know from experience the advantage that gas compressor user cost of the present utility model is low, repair and maintenance convenient, compression ratio is high.
Gas compressor of the present utility model comprises following three parts:
One, by the cylinder assembly 20 that has a plurality of cylinders to constitute, each cylinder comprises cylinder sleeve separately and is arranged at the interior piston of cylinder sleeve; Simultaneously, cylinder sleeve can be dismantled easily, install, and is convenient to maintenance, the maintenance of countercylinder body in the gas compressor using process like this.Its two, the cylinder head 10 that cooperates with cylinder (20); Its three, and drive the driving mechanism 30 that described piston moves in cylinder sleeve;
Form gas single channel 120 in the cylinder head 10, be provided with a plurality of one-way valves of gas flow direction in the control cylinder sleeve in the described gas single channel 120 with gas access 180 and gas outlet 190.
Above-mentioned three parts are fixedly connected sequentially by the mode of routine, connect such as screw rod, and more common in view of this means of fixation, this does not give unnecessary details.
The independent setting of cylinder sleeve has lot of advantages, especially for multistage gas compressor.Must cause the damage of cylinder in the compressor using process.Take shape in an integral type gas compressor on the foundry goods for a plurality of cylinders, the damage of a cylinder causes all cylinders all to get replacing simultaneously, other does not damage to such an extent that cylinder is all scrapped thereupon, make user cost increase greatly, and the split of cylinder design only needs to change the cylinder sleeve that breaks down, and changes new cylinder sleeve, can work on, can fully use each cylinder like this, save user cost greatly.
A plurality of cylinder sleeves have constituted multistage compression, compare single cylinder compressor, and its compression ratio is higher, can obtain the pressurized gas of higher concentration.
Comprise that with compressor four cylinder sleeves are that example specifically describes the technical solution of the utility model below:
As shown in Figure 1, cylinder assembly 20 tops include four cylinder sleeve: 210a, 210b, 210c, the 210d that is arranged in parallel, and are arranged in parallel to be frequent so-called in-line arrangement arrangement herein.For ease of processing, four cylinder sleeves evenly distribute, the first cylinder sleeve 210a, and the second cylinder sleeve 210b, the 3rd cylinder sleeve 210c, the diameter of the 4th cylinder sleeve 210d dwindles gradually, and then makes the volume of four cylinders reduce gradually along gas flow direction.The in-line arrangement of a plurality of cylinder sleeves is arranged, and compares radial pattern and arranges, and its annexation is simple, and each connected element is also corresponding simple, is convenient to the manufacturing and the maintenance of compressor.
Referring to illustrated in figures 1 and 2, the first cylinder sleeve 210a, the second cylinder sleeve 210b, the 3rd cylinder sleeve 210c is disposed with piston 220a, 220b, 220c, 220d in the 4th cylinder sleeve 210d.First piston 220a, the second piston 220b, the 3rd piston 220c, the 4th piston 220d links to each other with guide rod 320a, 320b, 320c, 320d successively, and each guide rod promotes each piston and moves in each cylinder sleeve.
The bottom of cylinder assembly 20 position of corresponding each cylinder sleeve respectively forms four guidings cavity: 230a, 230b, 230c, 230d, end with four cylinder sleeves is tightly connected respectively, and the lower surface of the other end of four cylinder sleeves and cylinder head 10 is in edge's driving fit.Four guiding cavitys hold each guide rod and move in its cavity.
Form cross-section area on the cylinder head 10 and be circular air-flow single channel 120, the one end is gas access 180, and the other end is a gas outlet 190.The air-flow single channel is provided with gas access joint 181,182, five one-way valves of inlet firmware, the valve fixed block 150 of fixedly connected each one-way valve, outlet connection 191, outlet connection firmware 192 for 120 li.
Five one-way valves comprise:
One between the gas access joint 180 and the first cylinder sleeve 210a to the inlet one-way valve 111 of the unidirectional conducting of maximum volume cylinder sleeve;
Between the described cylinder that adjoins between the cylinder of the unidirectional conducting of cylinder of less volume one-way valve: one-way valve 114 between one-way valve 113, the 3rd cylinder between one-way valve 112, second cylinder between first cylinder;
One at the outlet one-way valve 115 that has between minimum volume cylinder and the gas outlet joint 190 to gas outlet 190 unidirectional conductings.
For ease of explanation, the direction of close gas access 180 is the upstream, and the direction of close gas outlet 190 is the downstream.After assembling is finished, the upstream extremity of the downstream engagement inlet attack firmware 182 of inlet attack 181, the upstream open end of the downstream engagement inlet one-way valve 111 of inlet attack firmware 182, the upstream extremity of valve fixed block 150 meshes the downstream of its upstream one-way valve that is close to, the upstream extremity of the downstream one-way valve that the downstream engagement of valve fixed block 150 is adjoined with it.In the ingress of the upstream extremity of valve fixed block 150 and each one-way valve by gasket seal 140 sealings.The downstream of the upstream extremity engagement outlet one-way valve 115 of outlet connection firmware 192, the downstream engagement outlet connection 191 of outlet connection firmware 192.Form the central cavity that connects along described air-flow single channel 120 directions as shown in Figure 3 on the valve fixed block 150, and be communicated with described central cavity and cylinder sleeve be connected cavity 151, form air-flow path for 120 li at the air-flow single channel like this, also form four gas channels that are communicated with air-flow single channel 120 and each cylinder sleeve simultaneously.In order to save cost and convenient processing, valve fixed block 150 also can be processed into a side and form along the groove of air-flow single channel 120 directions, and be communicated with described groove and cylinder sleeve be connected cavity 151.
Driving mechanism 30 mainly comprises bent axle 310 and the guide rod that links to each other with bent axle, and the piston that each bent axle 310 drive respective guide rod and then driving are connected with guide rod moves reciprocatingly in each cylinder sleeve.As Fig. 2 and shown in Figure 4, bent axle 310 is multiplex assemblies, comprise that mainly two ends are provided with outside main shaft 311, eccentric 312, are used for separating and fixing the pad 340 of each eccentric 312 on main shaft, be provided with bearing 331 and 332 in the both sides of main shaft 311 and be used for supporting spindle 311.Outer surface at main shaft 311 has a plurality of keyways 341 simultaneously, and keyway 341 separates along the central position corresponding to the guiding cavity of main shaft 311, and bent axle 310 also can replace with an assembly certainly.After the assembly on the main shaft 311 all installs,, can make each assembly constitute and be rigidly connected by being screwed into screw in main shaft 311 both sides.Bent axle 310 also comprises connecting rod 350, connects each eccentric 312 and corresponding guide rod by crosshead pin 351.An end is provided with drive pulley 360 on the main shaft 311, drives main shaft 311 and then drives bent axle 310 motions by belt.Setting-up eccentricity device 312 and to be used at the pad 340 that separates on the main shaft and fix each eccentric 312 be for when individual component goes wrong on the main shaft 311, can change at any time, improve the working life of each assembly, and then reduce the user cost of gas compressor.
Referring again to shown in Figure 4ly, is the amplification profile of bent axle 310, and as shown in the figure, each eccentric is provided with two keyways 345 and 346 for 312 li, makes eccentric 312 can be fixed in two diverse locations of main shaft 311.Because bent axle is more common, repeats no more herein.
The working procedure of the utility model gas compressor: need the gas of compression to be transported to gas compressor by inlet attack 181, the inlet attack fixed block 182 of its downstream of flowing through and inlet one-way valve 111.This moment, compressor was in the cyclic process, the first cylinder sleeve 210a is in the suction phase, this moment is owing to one-way valve 112 downstream pressures between first cylinder are higher than suction pressure, so the gas that flows to from inlet one-way valve 111 passes through the first air-flow path 130a by whole inspiration first cylinder sleeve 210a, and the one-way valve 112 between first cylinder of not flowing through.Compressed the gas of inspiration as the first cylinder sleeve 210a, be initially located in the discharge phase, because through overcompression, the pressure of discharging gas is higher than one-way valve 112 downstream pressures between first cylinder, so the gas of discharging is by the one-way valve 112 and the second air-flow path 130b between first cylinder, all flow into the second cylinder sleeve 210b, the one-way valve 113 between second cylinder of not flowing through of gas herein, same because one-way valve 113 downstream pressures are higher than its upstream pressure between second cylinder.Circulation is gone down so successively, be compressed through the first cylinder sleeve 210a, the second cylinder sleeve 210b, the 3rd cylinder sleeve 310c, the 4th cylinder sleeve 210d in turn from the gas of 181 li inputs of gas access joint, the high concentration gas that obtains at last is from outlet connection 191 output compressors.
In the process of gas compressor work, the combination of each piston-cylinder both had been compressed in the also gas of " not pump down volume " lining of compression compressors of gas of " pump down volume " lining of compressor.The volume that the piston that " pump down volume " herein refers to be moved in each cylinder sleeve pushed away." not pump down volume " refer to when Piston Compression, do not pushed away by piston face and equally by the volume of Piston Compression.With second cylinder sleeve is example, and pump down volume is the internal volume of second cylinder sleeve, and pump down volume is not the second gas channel internal volume, the internal volume of the first cylinder one-way valve 130A and the pad volume that directly is communicated with second cylinder sleeve and.
When the second cylinder sleeve 210b is in its compression phase time, also compressed by the second piston 220b at the gas of pump down volume not.To compare with the second cylinder sleeve 210b be not very little to pump down volume.Therefore, to compare with pump down volume not be bigger to the whole pump down volume between the first cylinder sleeve 210a and the second cylinder sleeve 210b.So in its induction stroke, the oxygen of second piston 220b pump down volume extraction never is less, can extract more oxygen from the first cylinder sleeve 210a and compress.
Similarly, each cylinder sleeve can more efficient compression.Because each cylinder sleeve is with the less relatively not pump down volume work between cylinder sleeve itself and subordinate cylinder sleeve upstream.
Foregoing description is an example with four cylinder compressors; The above-mentioned technical characteristics of this model utility is equally applicable to the compressor that other has different number cylinders.In addition, this model utility is applicable to the compressor with the cylinder head of different one-way valves and anchor designs, and foregoing description only with a kind of compressor as demonstration.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.